Virtual Memories

From some idiot in the Washington Post:

Large populations living in megacities consume massive amounts of the Earth’s energy to maintain their infrastructures and daily flow of human activity. The Sears Tower in Chicago alone uses more electricity in a single day than the city of Rockford, Ill., with 152,000 people. Even more amazing, our species now consumes nearly 40 percent of the net primary production on Earth — the amount of solar energy converted to plant organic matter through photosynthesis — even though we make up only one-half of 1 percent of the animal biomass of the planet. This means less for other species to use.